Steam-cooker.



C. W. STERIGK.

STEAM COOKER. 13211101111011 FILED MAY 9, 190a. RENEWED JULY 6, 1011.

1,004,099. Patented Sept. 26, 1911.

' UNITED STATES.

PAT NT OFFICE,

WESLEY s'rnn-xox, or P ILADELPHIA, PENNSYLVANIA, AssIGNoR or 01m- FOURTH 'ro J. H. GAINER an]: ONE-FOURTH To A. rrromrsou AND JOHN swam,

"or nnrnonron'r, rumors.

STEAM-COQKER.

Patented Sept. 2c, 1911 Application filed May 9, 1906, Serial No. 316,045. Renewed July 6, 1911. Serial No. 637,095.

fTo allf'whom it may concern:

; .Befit known that I, CHARLES WnsLnY 1S'I'ERICK, a citizen of the United States, residing at Philadelphia, in the county of I .Philadehhia and State of Penns lvania 3 a have invented certain new and useful Improvements in Steam-Cookers, of which the followln 1s a s iecificatlou.

-My invention relates to a new and useful 33 improvement in the forming, making and construction of a sectional steam cooker. ,The base or bottom section serves as a boiler .to generate steam, from which each 'sect-ionslis supplied with steam'direct, without passing into other sections. The bot- ,tom of the boiler is corrugated to increase the heating surface. ,Tlie object of my invention is to produce I ia-stearn cookermade of aluminum without go resortlng to solderin or-castlng (both of wh1ch are dlflicult-an expensive) so that it,

can be made light and durable and each piece-o1, part can be duplicated and with this .end' n..v1ew, I-make the body, bottom, rim

and walls out of one sheet of aluminum, and

, rm a 'rii'n at-the top of each section so that the bottom of alfove section telescopes in the rim of the section below. The rim is formed byincreasm the diam eter of each section at top e ge from about one-half inch below the top. In ordeer that the bottom of each section may fit close and neat, I :form .a bead by-pressing the metal creased inwardly about one-sixteenth of an inch, which serves as a-stop to prevent the sections telescoping beyond a predetermined point and provides a support for the'bottom to rest'on and at the same "time strengthens the sections of the in the tube provide a steam tight joint.

In order that oth ers skilled, in the art to which my invention relates may understand how to make and use the same the construc=- tion and operation willbe described indetail referring to the accompanyin Y drawlngs' forming a part of this speci cation, 1n WlllChe Figure 1 1s a vertical section and elevation' of my steam cooker showlng the boiler and sections in their proper placesabof the i c being sections to place the food in tube ;cooked cl being the boiler to generate the steam 1n; Fi 2 is a sectional plan of cooker as throu h t e line A-A; Fig. 3 is a sec- -t1onal p an of cooker through line B-B';

{Fig.4 is a sectional plan of cooker 0 through line CC; Fig. 5 is a sectional plane of boiler through line D-D, showin circular corrugations formed in bottom 0 boiler 0; ,Figs. 6 and 7 show the methods for securing jandb connecting the steam tubes in sections a- -c. 1

Similar letters refer to similar parts throughout the views. I The boiler 11 is provided with an inlet hav -mg a bushing t; 1- is a funnel shaped tube secured in the bushing i'n inlet forthe pur- :pose of refilling the boiler with water. The upper edges of sections a, b, 0 and (Z areenlarged and provided with inwardly formed beads, the enlarged upper edge of each section being made so that the bottom of each section above may be set in another section and be-supported level on the bead f. g is a strengthening rim formed at the -u-pper edge of each section. Vertical steam ,tubesto, 71, are fitted in section 0, the upper ,ends ofsame. being about one-half inch be 'low the bottom of section b, the lower ends ;of the tubes 0, 7) and 2' being fitted-in bushings,mindicated in Figsl and 6. Steam tubes j-and l: in section b and steam tubes 12 ,in section a are similar in height to the above described tubes 0, 7), z, and are secured to the bottom of the respective sections by screwing into a bushing 01" socket m shown in Figs.1and7. It will be'notd that a proj'ectionis formed 0n-the,,bottom of bushing m1, This projection'is arranged to slide within the tubes in the sections below and form separate steam conneetions into the other sections.

c .is:a cover having a rim and top formed of one piece of aluminum and is adapted to fit any of the sections.

It will:be noticed that the steam flowing through tube 11 will flow into section 0 only;

steam flowing through tubes 0 and will pass into section?) only; whilb'steafh'ilowing through tubes 72, k, n will flow in section a only, whereby each cooker will have its own sup 1y of steam.

Steam tu s n, j, k, 0, p,- i, in sections a, b and 0 are all screwed into bushings m m and are adjustable and can-be removed when desiredfor refurnishing or cleaning. It willthus be seen that all parts are adjust-- able. I do not confine myself to number of sections or number of tubes.

What I claim is:

1. A sectionalized steam cooker comprising a bottom. section consisting of a single piece of sheet metal formed into a vessel having a cylindrical side wall and a bottom integrally connected therewith, the side wall of which is provided with an internal rib extending entirely around the vessel adjacent the top edgethereof and withan outwardly rolled bead at the top edge, said side wall having an'openingadjacent the bottom of the vessel andbelow the water level in the latter, a filling tubeinserted .in the opening,.

and means for clamping the tube in position on the vessel; a second section: made of a single piece of sheet metal and formed into a vessel adapted to fit in and contact with the internal surface of the bottom section to form a substantially vapor-tight joint and resting on the internal rib thereof'to be supported by the latter and preventing the escape of vapor around the rib, the side wall of the second-section being provided with .an internal rib adjacent its top and an outwardly rolled bead above the rim, the bottom of the second section being provided with openings, bushings inserted through the openings and having peripheral flanges bearing on the under side of the said bottom, and tubes in the second section and of less height than the latter and removably se-' cured by screwing on the bushings, said tubes serving to prevent the bushings from dropping out of the openings; a top section similar in construction to the second section and having an opening in its bottom, a bushing. in the opening and having a portion extending upwardly into the top section and another portion extending downwardly into the second section to extend into one of the tubes .of the latter, and a tube in thetop section and secured in position by screwing on the bushing of the latter; and a cover fitted to thetop section.

- 2. In a sectionalized cooker, the combination of a ,bottom section consisting of a single piece of sheet aluminum formed into a vessel having an imperforate bottom and a side wall, provided with a erforation, an elbow having one end inserte in the perforation, means on the elbow for clamping the .latter to the said side wall, a filling device removably fitted on the elbow, the side wall being provided with an internal'annular rib and an external annular bea'd at the top edge and adjacent 'thelrib; a second section con- 7 sisting of a single piece of sheet aluminum shaped into a vessel having its side wall provided-with an external annularbead a tits top edge and an internal rib below the bead,

"the bottom of the second section being provided with an opening, a bushing having an annular flange at its lower end bearing against. theunder surface of the bottom and threaded above the flange, the threaded end of the bushing being inserted in the opening of the said bottom, and a tube of larger diameter than the perforations in the said bottom and screwed on the threaded portion of the bushing and removablyheld in upright position solely by the bushing; and a removable cover on the second section;

3. A sectionaliz'ed cooker comprising a plurality of superimposed sections, each consisting of a single piece of sheet aluminum formed with a bottom and a cylindrical wall, each cylindrical wall having an ins wardly-pressed annular bead at a pointedcenter of the second section and spaced 120 apart, bushings in the openings, pipes on the bushings, the third sections having bushings in its bottom arranged 120 apart to 95 enter two of the pipes in the second section, pipes in the third sectionsecured to the bushing'the'uppermost section having an opening in its bottom disposed in line with one of the pipesof the second section, a bushing in the opening of. the uppermost section and extending downwardly into the upper end of one of the said tubes, a tube secured to the last-mentioned bushing, and a cover for the. uppermost section.

In testimony whereof, I have hereunto affixed my signature in presence of two subscribing witnesses.

' CHARLES wEsLEYsT nIoK;

Witnesses: I

CHARLES HEBDING', CARRIE SPELDING. 

